Here, the
angle between the rotor blades and the wind changed
by rotating them around their longitudinal axis, thus
controlling the power input and rotational speed the
rotor. The adjustment the rotor blades realized with
a pitch control system which ensures that the angle of
attack the rotor blades always set the optimum
position for any wind speed. The pitch system therefore represents
the primary braking system wind turbine.
Almost all modern wind turbines use so-called „pitch
control“ regulate speed and power output. For braking, the rotor blades
are rotated around their longitudinal axis and pitched
into the wind, which referred the so-called “flag
position” braking position. This causes the rotor to
slow down ithin few seconds and also used for
safety shutdowns.
Separate control units
As the main purpose safety shutdown protect
the system against damage, special emphasis placed
12. The Han Modular® connection technology
from HARTING well suited deal with even emergency
operation.y
Facing the wind safely
The safety demands modern ind turbines are
extremely high
